A government study recommended a national highway system of 33,920 miles, and Congress passed the Federal-Aid Highway Act of 1944, which called for strict, centrally-controlled design criteria.
一项政府研究建议建设一个33,920英里的全国公路系统，国会通过了1944年的《联邦援助公路法案》，该法案要求制定严格的、集中管控的设计标准。
To introduce the design method, composition and main study content of "Aid-decision System of Heavy Machine Gun System of Approval Test".
介绍了重机枪系统定型试验辅助决策系统的设计方法、组成和主要研究内容；
Some new experiments with the aid of computer are designed to study the relationship between color channel and figure channel in human visual system.
利用计算机设计新的实验，研究了人类视觉系统的颜色、形状通道和识别颜色的时间。
This paper introduces the study and application of computer aid home system for highway drawing lines.
本文介绍了公路画线计算机标识系统的研究及应用。
This present study concerns the essential framework, the text-selection system, the knowledge system, the exercise system and the reading-aid system of the Chinese textbook.
研究分别从该教材的基本结构、教材的选文系统、助读系统、知识系统和作业系统等几个方面进行。
The present study deals with the numerical calculation of the turbulent flow around airfoils in the orthogonal curvilinear coordinate system with the aid of the so-called viscous-layer model.
本文应用粘性层模型，采用贴体的正交曲线网格，对湍流流动进行了计算。
The present study deals with the numerical calculation of the turbulent flow around airfoils in the orthogonal curvilinear coordinate system with the aid of the so-called viscous-layer model.
本文应用粘性层模型，采用贴体的正交曲线网格，对湍流流动进行了计算。
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